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drm/amdgpu/psp: add support to load TOC to psp

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Add support for the new load TOC command.

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Le Ma <Le.Ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hawking Zhang 2018-10-24 15:25:38 +08:00 committed by Alex Deucher
parent 46ea9501fb
commit 7ea49e7651
1 changed files with 53 additions and 4 deletions
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57
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
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@ -183,10 +183,44 @@ static void psp_prep_tmr_cmd_buf(struct psp_context *psp,
cmd->cmd.cmd_setup_tmr.buf_size = size;
}
static void psp_prep_load_toc_cmd_buf(struct psp_gfx_cmd_resp *cmd,
uint64_t pri_buf_mc, uint32_t size)
{
cmd->cmd_id = GFX_CMD_ID_LOAD_TOC;
cmd->cmd.cmd_load_toc.toc_phy_addr_lo = lower_32_bits(pri_buf_mc);
cmd->cmd.cmd_load_toc.toc_phy_addr_hi = upper_32_bits(pri_buf_mc);
cmd->cmd.cmd_load_toc.toc_size = size;
}
/* Issue LOAD TOC cmd to PSP to part toc and calculate tmr size needed */
static int psp_load_toc(struct psp_context *psp,
uint32_t *tmr_size)
{
int ret;
struct psp_gfx_cmd_resp *cmd;
cmd = kzalloc(sizeof(struct psp_gfx_cmd_resp), GFP_KERNEL);
if (!cmd)
return -ENOMEM;
/* Copy toc to psp firmware private buffer */
memset(psp->fw_pri_buf, 0, PSP_1_MEG);
memcpy(psp->fw_pri_buf, psp->toc_start_addr, psp->toc_bin_size);
psp_prep_load_toc_cmd_buf(cmd, psp->fw_pri_mc_addr, psp->toc_bin_size);
ret = psp_cmd_submit_buf(psp, NULL, cmd,
psp->fence_buf_mc_addr);
if (!ret)
*tmr_size = psp->cmd_buf_mem->resp.tmr_size;
kfree(cmd);
return ret;
}
/* Set up Trusted Memory Region */
static int psp_tmr_init(struct psp_context *psp)
{
int ret;
int tmr_size;
/*
* According to HW engineer, they prefer the TMR address be "naturally
@ -195,7 +229,21 @@ static int psp_tmr_init(struct psp_context *psp)
* Note: this memory need be reserved till the driver
* uninitializes.
*/
ret = amdgpu_bo_create_kernel(psp->adev, PSP_TMR_SIZE, PSP_TMR_SIZE,
tmr_size = PSP_TMR_SIZE;
/* For ASICs support RLC autoload, psp will parse the toc
* and calculate the total size of TMR needed */
if (psp->toc_start_addr &&
psp->toc_bin_size &&
psp->fw_pri_buf) {
ret = psp_load_toc(psp, &tmr_size);
if (ret) {
DRM_ERROR("Failed to load toc\n");
return ret;
}
}
ret = amdgpu_bo_create_kernel(psp->adev, tmr_size, PSP_TMR_SIZE,
AMDGPU_GEM_DOMAIN_VRAM,
&psp->tmr_bo, &psp->tmr_mc_addr, &psp->tmr_buf);
@ -211,9 +259,10 @@ static int psp_tmr_load(struct psp_context *psp)
if (!cmd)
return -ENOMEM;
psp_prep_tmr_cmd_buf(psp, cmd, psp->tmr_mc_addr, PSP_TMR_SIZE);
DRM_INFO("reserve 0x%x from 0x%llx for PSP TMR SIZE\n",
PSP_TMR_SIZE, psp->tmr_mc_addr);
psp_prep_tmr_cmd_buf(psp, cmd, psp->tmr_mc_addr,
amdgpu_bo_size(psp->tmr_bo));
DRM_INFO("reserve 0x%lx from 0x%llx for PSP TMR\n",
amdgpu_bo_size(psp->tmr_bo), psp->tmr_mc_addr);
ret = psp_cmd_submit_buf(psp, NULL, cmd,
psp->fence_buf_mc_addr);